Re[2]: Synthetic Oil for type 3

[Toby Erkson <Toby_Erkson@ccm2.hf.intel.com>]

Oooh, bad subject to get into!

I have GB tech articles and catalog and I've noticed that some of the 
information is dated.  The rap on heat and synthetics is one of them.  
Synthetics today are much better at releasing heat.  I had personally 
contacted Mobil and Redline about their oils and their heat characteristics 
and both confirmed that today's synthetics don't have that problem.

I now run nothing but pure Mobil or Castrol (preferred) synthetic oil and 
have had excellent results in my baby.  After several experiments using 
conventional, blended, and pure synthetic oils I found that synthetic was 
the only oil to cool off the quickest (like after the engine is off) and to 
reach lower pressure more slowly.  The conventional oil would rapidly drop 
in oil pressure as it heated and end up with a very low (<10psi) oil 
pressure reading at idle.  The synthetic didn't drop as quickly and would 
end up around 14psi at idle. (One experiment was conducted on two hot days: 
 filter changed and conventional used, then the next day the oil drained 
and synthetic used, filter not changed.)

My engine has over 15K miles and I've been using synthetic oil in it over 
70% of its life and she's still running strong.
     Toby Erkson
     air_cooled_nut@pobox.com
     '72 VW Squareback 1.6L bored and stroked to 2.0L
     '75 Porsche 914 1.8L for sale
     Portland, Oregon
     http://www.geocities.com/MotorCity/8501/

______________________________ Reply Separator _________________________________
Subject: Re: Synthetic Oil for type 3
Author:  type-3-errors@umich.edu at SMTPGATE
Date:    7/16/97 1:53 PM


Read the Gene Berg tech articles on Synth oil.  You'll find that synth
oil REPELS heat making it useless as a cooling mechanism in the air
cooled motor.  I'm sticking with Castrol 20W-50 for my money.

Kenik Hassel
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